Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Degradation of nitrobenzol fomite with catalytic wetting shared oxidative method

A technology of nitrobenzene and co-oxidation, which is applied in the direction of protection devices against harmful chemicals, can solve the problems of high toxicity, mutagenesis, teratogenicity, etc., and achieves high treatment concentration, reduced energy consumption, and increased activity. Effect

Inactive Publication Date: 2005-10-12
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF0 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production wastewater of these industries contains a large amount of organic pollutants such as nitrobenzene, aniline, and nitrotoluene; these organic pollutants are biologically refractory substances and cannot be directly treated by biochemical methods
In addition, nitrobenzene compounds are highly toxic to humans, easy to accumulate in organisms, and have "three effects" of carcinogenicity, teratogenicity, and mutagenicity

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Degradation of nitrobenzol fomite with catalytic wetting shared oxidative method
  • Degradation of nitrobenzol fomite with catalytic wetting shared oxidative method
  • Degradation of nitrobenzol fomite with catalytic wetting shared oxidative method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1. Wet oxidation method directly treats nitrobenzene waste water

[0022] Put 200ml of nitrobenzene wastewater solution with a concentration of 100mg / L to 400mg / L into the reactor, and replace it with ultra-pure nitrogen for 3 times (the purpose of replacing with nitrogen is to calculate the reaction time and determine the removal rate benchmark), and then add to the system Fill the medium with ultra-pure nitrogen at a certain pressure, heat up to the specified temperature, then fill with high-purity oxygen of 0.2-5Mpa, stir the reaction solution at a speed of 500 rpm, and react for 1 hour. After the reaction, the nitrobenzene compound The removal rate is shown in Table 1.

[0023] Reactant

[0024] Due to the difference in the substitution position of the hydrocarbon group, the removal rate will be different, mainly due to the influence of steric hindrance.

Embodiment 2

[0025] Embodiment 2, catalytic wet co-oxidation process nitrobenzene waste water

[0026] The difference from Example 1 is that methanol, ethanol, isopropanol, phenol and aniline are added respectively to the nitrobenzene waste water solution, and a catalyst is added simultaneously (the specific consumption is 0.2-5.0g), and after the reaction, the nitrobenzene The removal rate of similar wastewater is shown in Table 2.

[0027] Reactant

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A process for degradating the nitrobenzene-type pollutants by wet catalytic coxidizing method includes such steps as loading said pollutants into a high-pressure reactor, adding cooxidizing substance and catalyst, and cooxidizing reaction at 100-250 deg.C under 0.5-10 MPa.

Description

technical field [0001] The invention relates to a catalytic wet oxidation method, in particular to a catalytic wet co-oxidation method for degrading nitrobenzene pollutants. Background technique [0002] With the rapid development of industrial technology and the continuous expansion of production scale, various industrial wastewater containing high concentrations of organic pollutants that are difficult to biodegrade are increasing. It is difficult to meet the technical and economic requirements of purification treatment by conventional biochemical methods. As an important industrial raw material, nitrobenzene compounds are mainly used in dyestuffs, medicines, pesticides, explosives and other industries. The production wastewater of these industries contains a large amount of organic pollutants such as nitrobenzene, aniline, and nitrotoluene; these organic pollutants are biologically refractory substances and cannot be directly treated by biochemical methods. In addition, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A62D3/00
Inventor 付冬梅梁鑫淼陈吉平
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com